BREAKER RELIEF VALVE ASSEMBLY REPLACEMENT
THIS WORK PACKAGE COVERS
Removal, Cleaning and Inspection, Installation
Tools and Special Tools
Tool kit, general mechanic's (Item 113, WP 0338
Do not remove hydraulic tank filler cap or disconnect or remove any hydraulic system line or fitting unless
hydraulic system pressure has been relieved. Hydraulic system pressure can be over 2500 psi (17,237 kPa),
even with engine and pump off. To relieve pressure, lower all hydraulic attachments to the ground and shut
down engine. Move control levers through all operating positions, then slowly loosen hydraulic tank filler
cap. After maintenance, tighten all connections before applying pressure. Escaping hydraulic fluid under
pressure can penetrate skin, causing injury or death.
Remove relief valve assembly (1) from hydraulic tank (3).
Remove and discard preformed packing (2).